Copy all contents from external USB HDD to another?

Copy all contents from external USB HDD to another?

I have purchased a new 2TB external HDD. I want to backup my old one (also 2TB) by copying everything to the new one. It's about 1.6TB.

I assume a Copy/Paste transfer would not work (I always seem to encounter one error or another, when I try to Copy more than 40 or 50GB at a time). And I'd rather not babysit it for hours, copying chunk by chunk.

Update: I decided to try using Explorer's Copy function as D Bailey suggested. Decided to just try one folder (~650GB) first, and it's still running and no signs of impending failure (previously, when I tried to copy large amounts at a time, the speed would gradually decrease until it reached 1Kb/s, and then I'd get an Explorer message, Operation Failed or something). So far so good.

KYHI: I don't understand the distinction between cloning and copying, but, basically I am just doing a 1-time backup. The old HDD will serve as long-term storage, and the new one (a nice lightweight SSD) will be a convenient day-to-day copy.

Thanks, this was the advice I was actually trying to ask for. If I run into problems with Explorer I'll switch to robocopy (thanks for linking to the guide), and if that fails, I'll try the disk copy utility that came with my new drive. Much appreciated.

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Please check the following link:
https://www.eightforums.com/general-discussion/2684-how-can-i-copy-files-external-hard-drive-ms-dos-invalid-function.html
It is miserable that I met the same problem that he met.
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